Dust-catcher for drills.



M. STUCKBL.

DUST GATCHER FOB. DRILLS.

APPLIGATION FILED Nov. s, 1909.

Patented 0015.4,1910y Clt MARTIN STUCKEL, F HACE, DHO.

DUST-CATCHER FR Dltld'iS.y

Specification or" Letters Patent.

liltrtented Get.' d, S.

Application nledNovernper' 6, 1909. Serial No. 526,589.

.'lb all 'whom it rmay concer/i:

Be it known that l, MARTIN S'rUoKnL, a

citizen ot the United States, residing at Mace, in the county oi' Shoshone and State of idaho, have invented new and useful lmprovements in Dust-Catchers for Drills, of which the following is a specification.

lviy invention relateslto certain new and useful\l improvements in dust catchers in drilling and it consists in the novel combination and arrangement ot parts as will be hereinafter more particularly described and pointed out in the claims.

ln the drawings, Figure 1 is a side elevation or" my complete invention as applied to the usual. form of drilling machinery. Fig. is a vertical longitudinal section of my complete inventiontalren on the line -w ot Fig. 3. Fig. 3 is a horizontal cross section taken on the line If-y of F ig. 2 about the base portion oi my invention. F ig. 4. is a sin'lilar transverse section taken on the line of Fig. f2.

rllhe object ot my invention is toy provide a verypr; tical and el'l'ec-tive construction for dust. catchers to be used particularly in connection with any suitably designed or manu'liactured mining drill und it consists prii'narily ot' a sack or incl osure for receiving and confining the dust caused in. drilling, said sack being constructed of suitable pliable or other textile material and being conical or tunnel shaped and having its opposite upper and lower edges forming the ends thereof, securely clamped to encircle the shaft and being 'turned by the latter, during the operation in drilling, and many other details :in the construction and arrangement oi' the parts, as will more fully appear from the detailed vdescriptioiri to follow.

lctcrring to the drawings l represents a pneumatic drilling machine ot' the usual construction, the air being supplied to the same by an ordinary hose or pipe 2, said machine also having the usual lever 3 for vreo'ulatln(r the su wl f of air tot-hc same or controlling the power to be applied thereto. The drill bar Ll which is operated in the usual manner by the machine previously re- ,ieiicd to is polygonal in cross section, the

lower end out said shaft carrying an vordinary drill or other tool 5 for drilling the ground, rock or other surfacelto he operated upon, the entire device so constructed and arranged-'being held in its proper position and in the 'usual manner by a suitable beam or other receiving surface lli, all of which .are of the well -known construction.

Myinvention therefore consists of a circular basal portion 7 rom'sheet metal `and having an enlarged base 8 which is hollow,

the terminal edge of the base thus formed rhaving vertical paral-Y lel flat. clamping surfaces or extensions 9, between which is located the lower circular portionof the conical shaped sack 10 when theparts are properly clamped, thus securing the said sack firmly to the base thus Jformed, all of which is clearly shown in Fig. 2 of the drawing.

Encircling the upper inner portion of the base constructed as above described is an annular band 11, through which rivets, bolts or other similar devices may be passed into and through the vertical extensions 9 of the base and also through the lower or that portion oi' the sack thus formed, thereby'hold ing the several parts lirmly together.

lncircling the bar 4C is a ring 12 somewhat larger than said bar and connecting said ringto the band 11, are radially arranged arms 13, whereby said ring is irmly secured in its proper position in respect to the band, and also secured to the band 11 are the outer ends of two yielding clamping arms 14, the inner free ends of which are adapted to be brought into binding contact with the bar and having their ends so shaped as to correspond to the shape of the bar employed, so that a relative sliding movement of the part-s will be permitted, and at the same time the arms and base will rotate witlr the drill bar, all ot' which is clearly shown in Fig. 3 ot the drawings.

v Passing through theupper projecting portions 9 of the circular base 7 and also through that portion of the sack to .be clamped and also through the band 11, are two sot screws 15, the inner ends ot' which bear against the vertical. portions 16 ot' the arms'le, the said screws serving to hold the free ends of the arms 14 in engagement with the drill. bar to prevent lateral movement of n the base, but not sulliciently tight to prevent the arms sliding on the drill bar as the latter moves into the earth. Thus it will be seen that a circular base 8 which is in contact with the ground or other surface to be operated upon will rotate with the vand at the same time the arms is a furthe drill han to compensate i'-' ward movement ot the said lrr preferably formedv received and co lected by the sack into which the dust is finally confined. The upper end of the sack 10 also surrounds the drill bar #l and is secured to the latter by means of two semi-circular clamping blocks 17, which when brought together form a central opening 1S, which is approximately the same shape as the said bar, the blocks thus formed being constructed otn hard rubber or other suitable pliable material.

The clamping blocks 18 are provided with lower 'semi-circular extensions 19 which liliewise embrace the bai' fl andcovering the blocks thus formed together with the extensions is a metallic casing 20 made ot two semi-circular sections hinged at 2l and provided with a suitable 'fastening device 22 at their opposite edges, whereby the clamping blocks 18 are properly held and contined within tie casing thus formed. Fixed to the insi e of the metallic casing 20 thus formed are the ends of two yielding springs :23 which are adapted to be brought into contact with the binding blocks 18 for holding the latter in a rigid position in respect to the bar l and protecting the material of which the said blocks are composed, binding screws E24 being employed and brought in contact with the said springs, as clearly shown in Fig. Il of the drawing. The lower portions-ot the semi-circular sections of the metallic casino' 2O aie U-shaped as shown at and are atapted to Securely receive the upper circular edge or end ot the bag or sach' l0, as clearly shown in Fig. 2 of the drawing, rivets or bolts 26 being passed through the several connecting parts tor securing the saine together. I

Bui'ing theoperation ot the device the base may be manually elevated a distance from the ground or other surface operated upon to a sufiicient height to pei-init the dust to be removed from under the base, the tieni' bility of the sack thus employed permitting this operation and manipulation of the several parts. Y I

Having thus fully described the invention what is claimed as new is:

l. In a dust catcher for drills, a flexible sack encircling the drill bar, a lower annular base for said saclt adapted to bear upon the ground, means for tixedly securing' the upper portion of the sack to the drill bar, and a clamp engaging the drill and carried by the base and adapted to turn with and slide on the drill bar. i

2. A .dust catcher for drills comprising a lower annular base, yielding arms extending rigidly from the inner periphery of the base, the t'reeends of said arms bearing on the drill bar and adapted to turn with and slide on the drill bar, set screws carried by the base for holding the arms in engagement with the bar, a clamp tiXedly secured to the drill bar above the base, and a, flexible slack having its opposite ends secured to the clamp and base.- f z 3. A dust catcher ior drills comprising an annular base to surround the drill bar, means for loosely securing said base to the drill bar, an upper clamp including a pair of semi-annular blocks adapted to be secured to the drill bar, a metallic casing surrounding the blocks and including two semieircular sections, curved spring arms interposed.

between the casing and blocks, means for' holding said arms in binding Contact with the blocks, and a flexible sack having one end secured to the base and its opposite end. fixed to the said clamp.

4. A dust catcher for drills comprising an annular base, a band secured on the inside of the base, a central ring encircling the drill bar, radially arranged arms connecting said ring to the band, yielding arms attached to the band and having their inner ends shaped to correspond substantially to the sli'ape'of the drill shaft, set screws passi.ngtliioi1gh the base and bearing against the said arms, a clamp surrounding the drill bar at a point above the base, means for ixedly securing the clainp to the drill bar, and a conicalshaped flexible sack encircling the drill bar and having its opposite ends secured to the clamp and base.

ln testimony whereof l atliir niy signature -in presence ot two Witnesses. 

